根据格雷厄姆·格林同名小说改编。燠热的西班牙中部平原上，一位刚刚意外晋升为高级教士的神父，一名笃信共产主义的前任镇长，开着一辆锈迹斑斑的西雅特600汽车，正朝着马德里驶去……佛朗哥将军、宗教裁判所、马克思与《资本论》、色情电影、马拉加葡萄酒、圣三位一体……在格林这部对《堂吉诃德》的现代戏仿中，吉诃德神父与“桑丘”镇长就各种问题展开辩论。信仰遭到拷问，怀疑暗地滋生，两人事态频发的旅程最终将走向何处？

Sir Alec Guiness stars with Leo McKern in the story of a friendship between a Catholic priest and a Communist Mayor. Together they travel from their remote village to Madrid and back exploring their friendship, the demands of belief and constancy of faith. This lavish production filmed entirely on location captures the wit, warmth, and vitality that make the original novel by Graham Greene a unique work of literature.